Transmission crossmembers

I'm putting the 727 from my Fury into my dart. The dart currently has NO trans cross member. I found one for a '73, but will it work on my '71? Is there a difference? I know that the mount itself changed, but if I have a 73 mount and a 73 crossmember, can I fit it into my '71? If they are different, can anybody post pics of a '71 crossmember?

Thanks so much in advance for any guidance.